Thonotosassa Water Hardness & Quality Report (2026)
Water Hardness
9.7 grains per gallon
Source
groundwater
pH Level
8
neutral = 7.0
Lead
0.004 mg/L
✓ Below action level
TDS
440.9 mg/L
Est. Daily Cost
$0.44
energy & soap waste
Source: USGS Water Quality Portal · Updated 2026
0–60
mg/L
Soft
61–120
mg/L
Moderately Hard
121–180
mg/L
Hard
180+
mg/L
Very Hard
Appliance Damage Report
In Thonotosassa, your appliances are currently losing 22% efficiency due to mineral buildup.
| Appliance | In Thonotosassa | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 4.1 yrs | 8.5 yrs | -52% |
| Washing Machine | 7.4 yrs | 12 yrs | -38% |
| Water Heater | 8.9 yrs | 15 yrs | -41% |
Regional Water Comparison
How Thonotosassa compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Thonotosassa, Florida | 166.5 mg/L | 7.8 ppt | 🟠 Hard | groundwater |
| Temple Terrace, Florida | 136.5 mg/L | 6.9 ppt | 🟠 Hard | groundwater |
| East Lake-Orient Park, Florida | 265.5 mg/L | 10.9 ppt | 🔴 Very Hard | groundwater |
| Brandon, Florida | 95.5 mg/L | 5.6 ppt | 🟡 Moderately Hard | groundwater |
| University, Florida | 317.5 mg/L | 12.5 ppt | 🔴 Very Hard | groundwater |
National Benchmark
How Thonotosassa compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Thonotosassa | 166.5 mg/L | 🟠 Moderate |
| USA National Avg | 150 mg/L | 🟠 Moderate |
| Badger Top Rated | 8.5 mg/L | 🟢 None |
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What Makes Thonotosassa's Water Unique?
Local geology and source profile
Thonotosassa, Florida, in Hillsborough County — a Hillsborough County unincorporated community adjacent to Temple Terrace and Plant City in west-central Florida — receives its water from Hillsborough County Water, drawing from the Floridan Aquifer (Hillsborough County) through the west-central Florida distribution.
The hard 166.5 mg/L hardness and TDS of 440.9 mg/L reflect the west-central Florida Hillsborough County Floridan Aquifer supply's hard calcareous character — the Eocene Avon Park Formation and Ocala Limestone produce hard calcareous water typical of the Tampa Bay metro communities on the Floridan Aquifer (compare Lockhart FL: 184 mg/L; Fruitville FL: 189 mg/L on the similar Sarasota County Floridan draw). The Floridan Aquifer at Hillsborough County — Eocene Avon Park Formation (highly calcareous — primary hardness contributor), Eocene Ocala Limestone (calcareous — secondary contributor), and Pleistocene surficial aquifer (slightly calcareous — minor).
At 166.5 mg/L with TDS 441, Thonotosassa's water is hard. A water softener is recommended to prevent scale buildup. A reverse osmosis system is advisable for drinking water. The PFAS level of 7.8 ppt warrants a certified drinking water filter — the Hillsborough County Tampa metro industrial corridor contribute to Thonotosassa's elevated readings.
Geology & Source: Thonotosassa in Hillsborough County draws from Hillsborough County Water on the Floridan Aquifer (Hillsborough County, west-central Florida) — the Floridan Aquifer at Hillsborough County is developed in highly calcareous Eocene Avon Park Formation and Eocene Ocala Limestone — Florida Hillsborough County Floridan Aquifer Eocene highly calcareous aquifer produces hard water at 166.5 mg/L with TDS 440.9 mg/L.